Domains with DNS TXT v=spf1 a mx include:sendgrid.net include:mailgun.org include:_custspf.one.com ~all
There are 2 domains that have DNS TXT set to v=spf1 a mx include:sendgrid.net include:mailgun.org include:_custspf.one.com ~all. The top 2 records ordered by domain rank are listed below.